Lock slider



D. MARINSKY LOCK SLIDER Filed July 22, 1941 'IIIIIIIIIL I 4 I I I INVENTOR 0/11/45 MARIA/5K) BY 6 .4 4. 444 ATTORNEYS L065 SLEEPER Davis Marinsky, Bronx, N. Y2, assignor, by mesne s assignments-oi one-half to said Davis Marin- 3 sky and one-half to Louis iii. Morin, Bronx,

N. Y. Y i

17 Qlai.

This invention relates to slide fasteners employing sliders movable along the fastener stringers in coupling and uncoupling the same. More particularly, the invention relates to a slider device of the automatic locking type employing a pin part urged by a spring into projected position within the channel of the slider body and which is automatically withdrawn from the channel in the operation of grasping .the slider for manual operation thereof. The novel features of the invention will be best understood from the following description when taken together with the accompanying drawing, in which certain embodiments of the invention are disclosed, and in which the separate parts are designated by suitable reference characters in each of the views, and in which;

l is a perspective view of one form of slider which I employ showing the same detached.

Fig. 2 is a cross section through the silder of Fig. 1 illustrating the same upon fastener stringers and indicating the method of releasing t e lock element thereof.

Fig. 3 is a view similar to Fig, 2 showing the slider detached from the stringers and showing a modification.

sFig. 4 is a view similar to Fig. 1 showing another adaptation of the invention.

Fig. 5 is a cross section substantially on the line 55 of Fig. 4; and,

Fig. 6 is a view similar to Fig, 5 showing another form of construction.

My present invention relates to what are commonly referred to as lock sliders; that is to say, sliders employing a lock element for engaging at least one of the stringers of a slide fastener to retain the slider against movement on the stringers, wherein the lock element forms at last part of a finger gripping portion or pull of the slider so that the operation of grasping the pull will automatically release the lock element. In the different forms or construction shown, the lock element employed is Application July 22, 194i, Serial No. 4%,d65

mounted on a longitudinal axis to swing trans-' versely of the path of movement of the slider along the stringers so that the lock element forms a positive blocking portion which can be moved into inoperative position only by swinging the element on its pivot.

In Figs. 1 and 2 of the drawing 1 have shown one adaptation of the invention; and in these figures it represents a channeled slider body of more or less conventional form, the channel betom spaced walls 52 and 113. The top wall is provided centrally and longitudinally thereof with a yoke-shaped finger grip portion joining the wall 12 in enlarged end bearings l5 forming pivots for a pivot pin l6 on which is mounted an elongated lock element H. The element i! has a finger grip portion 58 with ribbed sides to correspond with ribbed sides 89 of thefinger grip it, the portion l8 fitting within and beneath the grip It when the slider is grasped between the fingers of the hand as indicated in Fig. 2 of the drawing, in which position the lock pin or pawl part it of the element H is raised out of the channel ii of the slider as will readily appear.

The element I? has a long substantially cylindrical portion 2! in which the pivot pin iii is arranged, and this portion is enlarged at one side as seen at 22 to forma socket seat for a coil spring 23 which also seats in a recessed portion 25 in the top wall 82 of the slider. The spring is preferably arranged adjacent the end of the element i7, having the pin or pawl it. The top wall I2 of the slider has an aperture 25 to admit the pin or pawl 20, and one wall of this aperture is beveled as seen at 26 to form a seat for a correspondingly beveled portion 2? which limits the swinging movement of the element ll, particularlywhen the slider is removed from the stringers 28 and 29 of a separable fastener.

The stringers 28 and 29 are shown in part in Fig. 2 of the drawing, and each stringer carries coupling links 30, 3!, respectively, which are coupled and uncoupled by the slider it; The pin or pawl 29, in the construction shown, is adapted to engage the links 3i of the stringer 29.

From the foregoing it will appear that the norrnal position of the slider is that shown in full lines in Fig. 1 and in dotted lines in Fig. 2, in which position the spring 23 supports the pin 2% in operative position. Grasping the slider for operation thereof in the manner indicated diagrammatically by the two fingers in Fig. 2 of the drawing will automatically bring the parts Ml, iii, into alinement as shown in full lines inFig. 2, allowing the slider to be moved freely along the stringers 28, 29. When the slider is released. the spring 23 will automatically move the pin 2&9 into locked position.

The structure shown in Fig. 3 of the drawing differs slightly from that shown in Figs. 1 and 2, and primarily in the structure of the lock ele ment 32 which is pivotally arranged within a yoke-shaped handle member 33 substantially the same as the handle member id. The element ing indicated at it formed between top and bet 82 instead of being in the form or a solid cross tially the same manner.

' vertical position, is also checked by "engagement of the element with the top wall of the slider so that the swinging movement. of this element is checked in both directions and minimizes the movement of the element necessary to engage and disengage the pin or pawl part thereoff It ranged upon the pivot pin 38 which pivots the element 32 to the slider or the ends of the handle portion 33. One end of the spring 31 enters an aperture in the slider wall as seen at 39; and the other end 40 engages the element 32. The spring serves to support the pin or pawl 4| of the element 32 in operative position extending into the channel 42 of the slider 43 through the aperture 44. The operation of the device shown in Fig. 3 will be the same as that shown in Figs. 1 and 2.

In Figs. 4 and is shown another adaptation of the invention; and in these figures, the slider body 45 is provided centrally of the ends of the top wall with pivot 41 which also passes through end walls of a lock element 48 which is substantially U-shaped in cross sectional form to receive a coil spring 49 similar to the spring 31 and mounted in substan- At one -end of the element 48 is a downwardly extending pin or pawl 50 which passes through an aperture 5| in the slider wall. Substantially centrally of the ,element 48 is an upwardly directed finger portion 52 which may be of any desired form and construction, and which normally tilts to one side of the axis 51 when the pin 50 is in operative position. It will thus be seen that as the finger piece 52 is grasped to operate the slider 45, the same will be moved into-perpendicular position against the action of the spring 49, and the pin 50 will be moved into inoperative position.

In Fig. 6 of the drawing is shown a slight modification of the structure shown in Figs. 4 and 5. In Fig. 6, 53 represents the slider. At 54 is shown one of the end bearings tor the pivot pin 55 on which the lock element 56 is mounted... This element has a pin or pawl 51 at one end operating in an aperture 58 in the slider 53. At said end, the element 56 is enlarged as seen at 59 to form a socket for a spring 60 which also seats in a recess Bl in the slider; this structure being similar to the structure shown in Figs. 1 and 2. The element 56 is also provided with a finger piece part 52 similar to the finger piece 52.

In the different forms of construction shown, it will appear that the pin or pawl part, or in fact the lock element as a whole, is mounted to swing transversely on the slider and with reference to the longitudinal movement of the slider on the stringers. In this way a definite and positive locking of the slider on the stringers is provided; that is to say, one which cannot be accidentally dislodged when the stringers are strained in the direction tending to separate the same. It will be apparent, however, that in all instances the operation of grasping the slider to operate the same will automatically withdraw the pin or pawl part from its operative position thus releasing the slider for free movement on the stringers.

It will appear from a consideration of Figs. 2, 3, 5 and 6 of the drawing that spring movement of the lock element into the slightly inclined vertical position is checked in this direction either by the element engaging the top wall of the slider or by the pin or pawl engaging a wall of the aperture in which the same operates; and the other directional movement of the element; that is to say, from the inclined to the bearings 48 for a pivot pin will also appear that in all positions of the element, this pin or pawl part remains in and is not wholely withdrawn from the aperture in the I slider wall. By reason of the limited movement of the lock element, the ease of operation of the slider in grasping the element is materially improved yghile at the same time this limited move ment makes it possible to maintain the springs substantially concealed at all times, thus presenting a eater and more finished appearance. It .will also appear that in all instances the lock element-includes an elongated cylindrical or sub-' stantially cylindrical pivot portion disposed between endt bearings receiving and enclosing the pivot pin; d in some instances, also sufficiently large to enclose the coil spring arranged on said Having fully described my invention, what I claim as new and desire to secure by Letters Patent is:

1. A slider for separable fasteners of the class described; said slider having spaced walls forming a channeled body, one wall of the slider having longitudinally spaced bearings, a lock element arranged between said spaced bearings, means pivoting the element to said bearings, said element having a projecting pin part adapted to extend through an opening in the slider wall, yieldable means co-acting with said element to normally support the pin part in projected position into the channel of said body, said element having an,

upwardly directed finger engaging portion rigidly secured thereto, and means supporting said finger engaging portion in a slight inclination to the vertical in the normal position of said element.

2. A slider for separable fasteners of the class described, said slider having spaced walls for ing a channeled body, one wall of the slider- 5; ing longitudinally spaced bearings, a lock element arranged between said spaced bearings, means pivoting the element to said bearings, said ei'ement having a projecting pin part adapted to extend through an opening in the slider wall, yieldable means'co-acting with said element to normally support the pin part in projected position into the channel of said body, saidelement having an upwardly directed finger engaging portion rigidly secured thereto, means supporting said finger engaging portion in a slight inclination to the vertical in the normal position of said element, and said slider wall including a finger grip portion into which the finger engaging por-- tion of said element is adapted to pass in withdrawing the pin of said element from the channel of the slider body.

3. A slider 'for separable fasteners of the class described, said slider having spaced walls forming a channeled body, one wall of the slider having longitudinally spaced bearings, a lock element arranged between said spaced bearings, means pivoting the element to said bearings, said element having a projecting pin part adapted to extend through an opening in the slider wall, yieldable means co-acting with said element to normally'support the pin part in projected position into the channel of said body, said element having an upwardly directed finger engaging portion rigidly secured thereto, means supporting said finger engaging portion in a slight inclina- .tical when said part is in normal position, the

tion to the vertical in the normal position of said element, and means substantially concealing said yieldable means between said element and slider body in both positions of said element.

4. A slider for slide fasteners comprising spaced walls forming a channeled body, one wall having protruding bearingeportions centrally of the ends thereof, a lock element pivotally supported in and between said bearing portions to swing transversely with respect to the longitudinal movement of the slider, a lock part projecting from one end of said element and adapted to means forming the pivot of said element in said bearings comprising an elongated pivot pin, said element having a pivot portion extending substantially the full distance between said bearings concealing said pivot pin, and the pivot portion extend through an opening in the slider wall into the channel of said slider body, a spring cooperating with said element to normally support said lock pertain said channel, and a finger engaging portion rigidly secured to said element projecting upwardly" and at a slight inclination to the vertical when said part is in normal position.

5. A slider for slide fasteners comprising spaced walls forming a channeled body, one wall having protruding bearing portions centrally of the ends thereof, a lock element pivotally supported in and between said bearing portions to swing transversely with respect to the longitudinal movement of the slider, a lock part projecting from one end of said element and adapted to extend through an opening in the slider wall into the channel of said slider body, a spring cooperating with said element to normally support said lock part in said channel, a finger engaging portion rigidly secured to said element projecting upwardly and at a slight inclination to the vertical when said part is innormal position, the means forming the pivot of said element in said bearings comprising an elongated pivot pin, and said element having a pivot portion extending substantially the full distance between said bearings concealing said pivot pin.

, 6. A slider for slide fasteners comprising @aced walls forming a channeled body, one wall having protruding bearing portions centrally of the ends thereof, a lock element pivotally supported in and between said bearing portions to swing transversely with respect to the longitudinal movement of the slider, a lock part projecting from one end of said element and adapted to extend through an opening in the slider wall into the channel of said slider body, a spring cooperating with said elementto normally support said lock part in said channel, a finger engaging portion rigidly secured to said element projecting upconcealing said pivot pin, and said spring being arranged upon the pin and substantially concealed by the pivot portion of said element.

7. A slider for slide fasteners comprising spaced walls forming a channeled body, one wall having protruding bearing portions centrally of the ends thereof, a lock element pivotally supported in and between said bearing portions to swing transversely with respect to the longitudinal movement of the slider, a lock part projecting from one end of said element and adapted to extend into the channel of said slider body, a spring cooperating with said element to normally support said lock part in said channel, a finger engaging portion rigidly secured to said element projecting of said element being enlarged at one side to form a seat for said spring.

8. A slider for slide fasteners comprising spaced walls joined by a connecting web at one end thereof forming a channeled body, one wall of said body having an integral U-shaped finger grip portion extending centrally and longitudinally of said wall and joining the wall in end bearings, a lock element pivotally supported in said end bearings to swing transversely with respect to said finger grip, said wall of the slider adjacent one of said bearings having an aperture opening into the-channel of the slider body, and said element having a lock part movable in said aperture to enter the channel of said body when said element is in locked position.

9. A slider for slide fasteners comprising spaced walls joined by a connecting web at one end thereof forming a channeled body, one wall of said body having an integral U-shaped finger grip portion extending centrally and longitudinally of said wall and joining the wall in end bearings, a lock element pivotally supported in said end bearings to swing transversely with respect to said finger grip, said wall of the slider adjacent one of said bearings having an aperture opening into the channel of the slider body, said element having a lock part movable in said aperture toenter the channel of said body when said element is in locked position, and said element having a longitudinal hollow portion receiv' ing a pivot pin supported at its ends in said bearings and extending through said element.

10. A slider for slide fasteners comprising spaced walls joined by a connecting web at one end thereof forming a channeled body, one wall of said body having an integral U-shaped finger grip portion extending centrally and longitudi nally of said wall and joining the wall in'end bearings, a lock element pivotally supported in said end bearings to swing transversely with respect to. said finger grip, said wall of the slider adjacent one of said bearings having an aperture opening into the channel of the slider body, said element having a lock part movable in said aperture to enter the channel of said body when said I finger grip portion of said slider body and substantially housed in said body in one position of said element. 5 um 11. A slider for slide fasteners comprising spaced walls joined by a connecting web at one end thereof forming a channeled body, one wall of said body having an integral U-shaped finger grip portion extending centrally and longitudinally of said wall and joining the wall in end bearings, a lock element pivotally supported in said end bearings to swing transversely with respect to said finger grip, said wall-of the slider adjacent one of said bearings having an aperture opening into the channel of the slider body, said upwardly and at a slight inclination to the ver- 7g element having a lock part movable in said aper ture to enter the channel of said body when said element is in locked position, and a spring ar v ranged between said element and slider wall normally supporting said element in locked position.

12. A slider for slide fasteners comprising a channeled body formed by spaced walls, one wall of the body having outwardly protruding bearings at end portions thereof, an elongated pivot pin mounted in said bearings and extending therebetween, an elongated hollow member arranged on said pin intermediate said bearings and housing said pin, said wall of the slider adjacent one of said bearings having an aperture opening into the channel of said body, the corresponding end of said member having a projecting lock part movable in said aperture to enter the channel of said slider, means normally supporting said lock partin projected position withinsaid channel, and an upwardly projecting finger part rigidly secured to said member arranged at a slight inclination to the vertical when said part is in normal position.

13..The combination with the slider of slide fasteners, of a lock element comprising an elongated body adapted to be arranged centrally and longitudinally of one wall of the slider, means pivotally coupling the element to th slider body to swing transversely, a projecting pin part at one end of said element, and said element having an upwardly projecting elongated finger grip portion rigidly secured thereto.

14. The combination with the slider of slide fasteners, of a lock element comprising an elongated body adapted to be arranged centrally and longitudinally of one wall of the slider, means pivotally coupling the element to the slider body to swing transversely, a projecting pin part at one end of said ele'ment, said element having an upwardly projecting elongated finger grip portion rigidly secured thereto, and said finger grip portion being yoke-shaped in form.

15. In a slide for slide fasteners, said slide having spaced walls forming a channeled body, the improvement which comprises a unitary finger grip and automatic lock structure, said structure including bearing g'members carried by one of said slider walls and'disposed at opposite ends longitudinally thereof; apivoted member journalled in said bearing members and adapted to swing about an axis parallel to the slider walls; said pivoted member having a rotatable upstanding finger grip part rigidly joined to said pivoted member and extending therefrom perpendicular to the axis thereof and adapted to swing with the pivoted member; a detent depending from said pivoted member; an opening in said slide wall to permit entry of said detent into link-engaging of said slider walls and disposed at opposite ends longitudinally thereof; a pivoted member journalled in said bearing members and adapted to swing about an axis parallel to the slider walls; said pivoted member having a rotatable upstanding finger grip part rigidly joined to said pivoted member and extending therefrom perpendicular to the axis thereof and adapted to swing with the pivoted member; a detent depending from said pivoted member; an opening in said slide wall to permit entry of said detent into link-engaging position; anon-rotatable second finger grip member mounted above and in spaced relation to said rotatable finger grip part, rigidly connected to said bearing members and extending therebetween longitudinally of the slider; and resilient means normally biasing the rotatable finger grip portion into a position offset in relation to said non-rotatable finger grip member andplacing said detent in link-engaging position.

17. In a slide for slide fasteners, said slide having spaced walls forming a channeled body, the improvement which comprises a unitary finger grip and automatic lock structure, said structure including an elongated body extending centrally and longitudinally of one wall of the slider with its ends pivotally connected to said wall to permit said elongated body to swing transversely of the longitudinal axis of the slider, a project ing locking pin on said elongated body with its outer end extending through an opening in said slider wall into the channel of the slider, a spring biased to hold the locking pin in said channel, and an upwardly projecting handle rigidly secured to said elongated body, whereby the elongated body may be rocked on its pivots against the bias of the spring to move the end of the locking pin substantially out of said channel and the slider may then be moved bodily by said handle longitudinally of the axis of the elongated member.

DAVIS MARINSKY. 

